Johnson filed the papers yesterday in a Florida court … in response to the docs Evelyn filed back on August 14. In his papers, Chad admits the two have a prenup that he believes should be enforced — especially the part about who pays for the lawyers.

According to the docs, Johnson wants a judge to BLOCK Evelyn’s request that Chad foot the bill for her legal fees … citing a provision in the prenup in which the two sides agreed to pay their own way if they were to split up.

The divorce has not been finalized yet … but at this point, it’s only a matter of time … and sources close to Evelyn tell us she’s “ecstatic” and ready to move on.

Evelyn and Chad were married back in July … but the honeymoon ended a month later, when Chad allegedly headbutted Evelyn during a heated argument over a condom receipt she found in his car.